18737224847072 has 48 divisors (see below), whose sum is σ = 37053832611600. Its totient is φ = 9326733063168.

The previous prime is 18737224847053. The next prime is 18737224847087. The reversal of 18737224847072 is 27074842273781.

It is a junction number, because it is equal to n+sod(n) for n = 18737224846996 and 18737224847014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123971804 + ... + 124122852.

It is an arithmetic number, because the mean of its divisors is an integer number (771954846075).

Almost surely, 2^{18737224847072} is an apocalyptic number.

It is an amenable number.

18737224847072 is a deficient number, since it is larger than the sum of its proper divisors (18316607764528).

18737224847072 is a wasteful number, since it uses less digits than its factorization.

18737224847072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168363 (or 168355 counting only the distinct ones).

The product of its (nonzero) digits is 59006976, while the sum is 62.

The spelling of 18737224847072 in words is "eighteen trillion, seven hundred thirty-seven billion, two hundred twenty-four million, eight hundred forty-seven thousand, seventy-two".